RE: Weird lock-ups

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Ah yes, I remember the inconsistency / splitbrain issue race condition being discussed and demonstrated.

Is migration from 1.3.x to 1.4.x transparent? Can I use the same pre-populated backing store from 1.3.x, with xattrs set as 1.3.x set them? Or is a backup/restore required?

And if there is a problem, is the downgrade path clean (i.e. can I just put 1.3.x back if 1.4.x goes wrong for me)? Are there any changes to xattrs used/set that can cause compatibility problems?

Thanks.

Gordan

-----Original Message-----
From: "KwangErn Liew" <ke.liew@xxxxxxxxx>
To: "Gordan Bobic" <gordan@xxxxxxxxxx>
Cc: "Gluster List" <gluster-devel@xxxxxxxxxx>
Sent: 29/10/08 14:55
Subject: Re: Weird lock-ups

On Wed, Oct 29, 2008 at 12:09 AM, Gordan Bobic <gordan@xxxxxxxxxx> wrote:

> KwangErn Liew wrote:
>
>>
>> 1.3.x isn't exactly a usable release for AFR anymore.
>>
>
> That's pretty worrying. The "stable" release is unusable for AFR, but the
> pre-release is? Isn't that a bit backward? How stable is the pre-release?
>

Split-brain issue is known in 1.3.x

More info
http://gluster-tmp.enix.org/docs/index.php/Understanding_AFR_Translator#Split_Brain

The 1.4.x pre-release is in QA mode.


KwangErn





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